cannot get nix os booting

I have gone through four fresh installs, but it always fails to find my disk

Hard to diagnose without knowing your config and the output of ls /dev/disk/by-uuid. Can you post these?

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You appear to have specified the wrong UUID for the root filesystem in your configuration. The device it’s looking for (/dev/disk/by-uuid/A160-ED00) appears to have a FAT/vFAT/FAT32/exFAT filesystem based on it’s UUID and it’s unlikely you installed to that filesystem. Post your configuration files and we may be able to help better.